Home / 13,221,947.80-19,832,921.70-8,686,984.60

Finding the Fourth Proportional to 13,221,947.80, 19,832,921.70 and 8,686,984.60

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Solution

The fourth proportional to 13,221,947.80, 19,832,921.70 and 8,686,984.60 is: 13,030,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221,947.80 : 19,832,921.70 = 8,686,984.60 : x
  2. Step 2: Convert to fraction form
    13,221,947.80/19,832,921.70 = 8,686,984.60/x
  3. Step 3: Cross multiply
    13,221,947.80x = 19,832,921.70 × 8,686,984.60
  4. Step 4: Simplify right side
    13,221,947.80x = 172,288,285,380,905.81
  5. Step 5: Solve for x
    x = 172,288,285,380,905.81/13,221,947.80
  6. Step 6: Final answer
    x = 13,030,476.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.